When Germany is hit by a drought, the Ruhr area is threatened with the collapse of drinking water. Meteorologist Martina Fechner is appointed head of the crisis team, but has to recognize that her colleagues see the crisis as an opportunity for their own career. When even highly toxic germs are discovered in a reservoir, the region is also threatened by a plague.
Katrin is a single mother of twins. When they find out that they owe their existence to a sperm donation, they persuade their mother to find their biological father.
